[PATCH] block layer: elv_iosched_show should get elv_list_lock

elv_iosched_show function iterates other elv_list, hence elv_list_lock should be got. Signed-off-by: Vasily Tarasov <[email protected]> Signed-off-by: Vasily Tarasov <[email protected]>
kishon · Oct 12, 2006 · c584164 · c584164
1 parent e6e80f2
commit c584164
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/block/elevator.c b/block/elevator.c
@@ -1085,7 +1085,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name)
 	struct list_head *entry;
 	int len = 0;
 
-	spin_lock_irq(q->queue_lock);
+	spin_lock_irq(&elv_list_lock);
 	list_for_each(entry, &elv_list) {
 		struct elevator_type *__e;
 
@@ -1095,7 +1095,7 @@ ssize_t elv_iosched_show(request_queue_t *q, char *name)
 		else
 			len += sprintf(name+len, "%s ", __e->elevator_name);
 	}
-	spin_unlock_irq(q->queue_lock);
+	spin_unlock_irq(&elv_list_lock);
 
 	len += sprintf(len+name, "\n");
 	return len;